Oddly Disjointed Constraints
(Published on 1. August 2026, 09:55 by starchacer)
- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each.
- White Kropkis/Black Kropkis: Digits in cells separated by a white dot are consecutive. Digits in cells separated by a black dot have a 1:2 ratio.
- Knight's Move: Cells a (chess) knight's move apart cannot contain the same digit.
- Odd/Even: Digits in gray circles are odd. Digits in gray squares are even.
- Disjoint Sets: Any identical local position across the nine distinct boxes forms an extra virtual group of 9 cells that also must contain the digits 1 through 9 uniquely.
- Negative Diagonal: Digits along the negative diagonal (R1C1 to R9C9) must be unique.
Solution code: Row 9, in order from left to right
Last changed on on 2. August 2026, 11:17
Solved by NeroChaos, Starlight, Klappa en ko, lgastako, Ph1nt, Bjd, SS20x3, forsen, mz32, jalebc, Saltensity, Megalobrainiac, Aaravos, Fizz, Mozart40, SKORP17, iEtsh, MarthaB, Elizy, DetroitPiston, Iluvsodah, ... elle3113, OnkelPhilip, jgarber, Crul, hige, galium_odoratum, Hyoryn, lina_hyena, 11srube, sparkymanu, Nagesh, ninamitn, BorisTheSnake, Porter , D3M4R, elnahal, Nyxx, TaeChi, Yahhavp, itsid
Comments
on 2. August 2026, 16:34 by Grey
Great 1* puzzle, but the diagonal is very unnecessary
on 2. August 2026, 11:17 by starchacer
Added the negative diagonal rule.
on 2. August 2026, 09:22 by Martina
Hi, what's up with the diagonal?
Last changed on 1. August 2026, 14:57
on 1. August 2026, 14:57 by Saltensity
Splendid puzzle with a nice breakin! :)
